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Resource Scheduling Strategy for Performance Optimization Based on Heterogeneous CPU-GPU Platform

Computers, Materials & Continua 2022年第10期73卷 1621-1635页

作者： Juan fang Kuan Zhou mengyuan Zhang Wei Xiang Faculty of Information Technology Beijing University of TechnologyBeijing100124China La Trobe University MelbourneVIC3086Australia James Cook University CainsQLD4878Australia

In recent years,with the development of processor architecture,heterogeneous processors including Center processing unit(CPU)and Graphics processing unit(GPU)have become the mainstream.However,due to the differences of heterogeneous core,the heterogeneous system is now facing many problems that need to be solved.In order to solve these problems,this paper try to focus on the utilization and efficiency of heterogeneous core and design some reasonable resource scheduling strategies.To improve the performance of the system,this paper proposes a combination strategy for a single task and a multi-task scheduling strategy for multiple tasks.The combination strategy consists of two sub-strategies,the first strategy improves the execution efficiency of tasks on the GPU by changing the thread organization structure.The second focuses on the working state of the efficient core and develops more reasonable workload balancing schemes to improve resource utilization of heterogeneous systems.The multi-task scheduling strategy obtains the execution efficiency of heterogeneous cores and global task information through the processing of task samples.Based on this information,an improved ant colony algorithm is used to quickly obtain a reasonable task allocation scheme,which fully utilizes the characteristics of heterogeneous cores.The experimental results show that the combination strategy reduces task execution time by 29.13%on average.In the case of processing multiple tasks,the multi-task scheduling strategy reduces the execution time by up to 23.38%based on the combined strategy.Both strategies can make better use of the resources of heterogeneous systems and significantly reduce the execution time of tasks on heterogeneous systems.

关键词： Heterogeneous computing CPU-GPU Performance Workload balance

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Secondary battery inspired ɑ-nickel hydroxide as an efficient Ni-based heterogeneous catalyst for sulfate radical activation

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Science Bulletin 2018年第5期63卷 278-281页

作者： Dongting Yue Xufang Qian Meng Ren Mengyuan Fang Jinping Jia Yixin Zhao School of Environmental Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China

Highly reactive radical species play an important role in syn-thetic chemistry, industrial processes, and environmental remedi-ation applications [1,2]. The radicals can be formed by eitherthermal decomposition of highly active oxidants or by catalyticactivation of stable oxidants under mild conditions [2]. Recently,the sulfate radical （.504） with its advantages of strong oxidizingpower, selective reactivity, and stability over a broad range of pHhas emerged as an excellent and versatile oxidant for a variety ofapplication [5].

关键词：中国科学通报英文版

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Optimal Operation with Dynamic Partitioning Strategy for Centralized Shared Energy Storage Station with Integration of Large-scale Renewable Energy

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JOURNAL OF MODERN POWER SYSTEMS AND CLEAN ENERGY 2024年第2期12卷 359-370页

作者： Li, Jianlin fang, Zhijin Wang, Qian Zhang, mengyuan Li, Yaxin Zhang, Weijun North China Univ Technol Beijing Future Technol Innovat Ctr Electrochem Ene Beijing 100144 Peoples R China State Grid Fujian Elect Power Res Inst Fuzhou Peoples R China

As renewable energy continues to be integrated into the grid, energy storage has become a vital technique supporting power system development. To effectively promote the efficiency and economics of energy storage, centralized shared energy storage (SES) station with multiple energy storage batteries is developed to enable energy trading among a group of entities. In this paper, we propose the optimal operation with dynamic partitioning strategy for the centralized SES station, considering the day-ahead demands of large-scale renewable energy power plants. We implement a multi-entity cooperative optimization operation model based on Nash bargaining theory. This model is decomposed into two subproblems: the operation profit maximization problem with energy trading and the leasing payment bargaining problem. The distributed alternating direction multiplier method (ADMM) is employed to address the subproblems separately. Simulations reveal that the optimal operation with a dynamic partitioning strategy improves the tracking of planned output of renewable energy entities, enhances the actual utilization rate of energy storage, and increases the profits of each participating entity. The results confirm the practicality and effectiveness of the strategy.

关键词： Shared energy storage (SES) dynamic partitioning strategy optimal operation Nash bargaining theory actual utilization rate of energy storage OPTIMIZATION SYSTEMS

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Recent advances in photonic crystal with unique structural colors:A review

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Journal of Materials Science & Technology 2023年第10期141卷 78-99页

作者： Keming Zhu Changqing fang mengyuan Pu Jing Song Dong Wang Xing Zhou School of Mechanical and Precision Instrument Engineering Xi’an University of TechnologyXi’an 710048China Faculty of Printing Packaging Engineering and Digital Media TechnologyXi’an University of TechnologyXi’an 710048China

Inspired by special color-forming organisms in nature,photonic crystal materials with structural color function have been developed significantly with great potential applications for displays,sensors,anti-counterfeiting inks,etc.This review aims to summarize the functions,self-assembly modes,and ap-plications of different kinds of photonic crystal materials.The preparation methods and characteristics of monodisperse inorganic nanoparticles,polymer nanoparticles,inorganic/organic core-shell nanoparti-cles,and MOFs are discussed.Subsequently,we summarize the method of assembling colloidal parti-cles into photonic crystals,which is a template induction method,inkjet printing method,drop coating method,etc.Moreover,the potential application of structural color is presented including humidity re-sponse and magnetic field response in sensors fields,as well as the advantages and disadvantages of anti-counterfeiting,fabric coloring,displays,smart windows,and Biomedical Applications.Finally,we present the development prospects and key problems of photonic crystals.

关键词： Photonic crystal Structural color Self-assembly Monodisperse nanoparticles Patterned nanostructures

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Enhanced photocatalytic hydrogen production performance of pillararene-doped mesoporous TiO_(2) with extended visible-light response

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Chinese Chemical Letters 2022年第4期33卷 1983-1987页

作者： Haimei Wu mengyuan Wang fang Jing Derui Kong Yifan Chen Chunman Jia Jianwei Li Hainan Provincial Key Laboratory of Fine Chemicals Advanced Materials of Tropical Island Resources of Ministry of EducationCollege of Chemical Engineering and TechnologyHainan UniversityHaikou 570228China MediCity Research Laboratory University of TurkuTykistökatu 6Turku 20520Finland

Pillararenes are a new type of supramolecular hosts,and they have been widely applied in drug delivery,catalysis,separation process,and sensors.However,they have rarely been used to produce hydrogen.Here,we report that pillararenes were used as functional molecules to explore photocatalysts and efficiently promoted hydrogen production from water.The most common and easily synthesized pdimethoxy pillar[5]arene(PI-OMe) was employed to form an organic-inorganic hybrid material with titanium dioxide(TiO_(2)),denoted as PI-OMe-TiO_(2).using a convenient sol-gel method.When the material was loaded with Pt nanoparticles,the resulting Pt/PI-OMe-TiO_(2)had a good activity and stability in catalyzing water splitting to produce hydrogen under visible light.The optimized catalyst Pt/PI-OMe-TiO_(2)(5.2 wt%)had a photocatalytic hydrogen production rate of 1736 μmol g^(-1)h^(-1) under visible light(λ> 420 nm)irradiation.The catalyst with a Pt loading of 0.5 wt% and a PI-OMe content of 5.2 wt% also showed good long-term durability after 10 cycles of 50 h testing.The total amount of hydrogen produced was65.01 mmol/g,and the corresponding turnover number(TON) value was 2084.Our findings suggest that pillararene derivatives are promising functional molecules to make efficient and stable hybrid photocatalysts with TiO_(2)and open a new door to hydrogen production using visible light.

关键词： Pillararene Organic-inorganic hybrid materials Visible-light photocatalysis Water splitting Hydrogen production

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Kidney organoids as a promising tool in nephrology

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Genes & Diseases 2022年第3期9卷 585-597页

作者： mengyuan Wu Tingting Hu Ping Zhu Moussa Ide Nasser Jie Shen fang Sun Qingnan He Mingyi Zhao Department of Pediatrics The Third Xiangya HospitalCentral South UniversityChangshaHunan 410013PR China Guangdong Cardiovascular Institute Guangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhouGuangdong 510100PR China XiangYa School of Medicine Central South UniversityChangshaHunan 410013PR China

Kidney disease has become a global public health problem affecting over 750 million people worldwide and imposing a heavy economic burden on patients.The complex architecture of the human kidney makes it very difficult to study the pathophysiology of renal diseases in vitro and to develop effective therapeutic options for patients.Even though cell lines and animal models have enriched our understanding,they fail to recapitulate key aspects of human kidney development and renal disease at cellular and functional levels.Organoids can be derived from either pluripotent stem cells or adult stem cells by strictly regulating key signalling pathways.Today,these self-differentiated organoids represent a promising technology to further understand the human kidney,one of the most complex organs,in an unprecedented way.The newly established protocols improved by organ-on-chip and coculture with immune cells will push kidney organoids towards the next generation.Herein,we focus on recent achievements in the application of kidney organoids in disease modelling,nephrotoxic testing,precision medicine,biobanking,and regenerative therapy,followed by discussions of novel strategies to improve their utility for biomedical research.The applications we discuss may help to provide new ideas in clinical fields.

关键词： Biomedical research Disease modelling Kidney organoids Precision medicine Stem cells

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State-of-the-art of biomass-derived carbon dots: Preparation, properties, and applications

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Chinese Chemical Letters 2024年第1期35卷 64-71页

作者： Mengyuan Fang Boyang Wang Xiaoli Qu Senrui Li Jinsheng Huang Jiangnan Li Siyu Lu Nan Zhou The First Affiliated Hospital of Zhengzhou University Zhengzhou 450001China Green Catalysis Center and College of ChemistryZhengzhou UniversityZhengzhou 450001China Erythrocyte Biology Laboratory School of Life SciencesZhengzhou UniversityZhengzhou 450001China

Carbon dots (CDs) have attracted considerable attention as a new type of fluorescent carbon nanomaterial because of their excellent optical properties, biocompatibility, and high electrical conductivity. Research on CDs has been conducted for nearly two decades and has focused on numerous precursors, various synthesis conditions and properties and applications of CDs. Biomass is critical in the green development of CDs because of its low cost, environmental friendliness, and sustainable properties. This review focuses on the advantages and applications of biomass-derived CDs. In addition, the challenges of photobleaching, toxicity, and stability of biomass-based CDs are discussed in detail. Lastly, the prospects and challenges of biomass-derived CDs are highlighted.

关键词： Carbon dots Biomass Properties Modification Applications

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Hydrothermal conversion of fructose to lactic acid and derivatives:Synergies of metal and acid/base catalysts

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Chinese Journal of Chemical Engineering 2023年第1期53卷 381-401页

作者： Tianqi fang mengyuan Liu Zhaozhe Li Li Xiong Dongpei Zhang Kexin Meng Xiaolei Qu Guangyu Zhang Xin Jin Chaohe Yang State Key Laboratory of Heavy Oil Processing College of Chemical EngineeringChina University of PetroleumQingdao 266580China Sinopec Research Institute of Safety Engineering Qingdao 266580China

With increasing strict regulation on single-use plastics,lactic acid(LA)and alkyl lactates,as essential monomers for bio-degradable polylactic acid(PLA)plastic products,have gained worldwide attention in both academia and industry.While LA is still dominantly produced through fermentation processes from start,chemical synthesis from cellulosic biomass remains a grand challenge,owing to poor selectivity in activating CAH and CAC bonds in sugar molecules.To our best knowledge,recent publications have been focused on hydrothermal conversion of glucose to LA,while this review summarizes the highlights on direct thermal conversion of fructose as starting material to LA and derivatives.In particular,the synergies of metal/metal cations and acid/base catalysts will be critically revised on retro-aldol and dehydration reactions.This work will provide insights into rational design of active and selective catalysts for the production of carboxylic acids from biomass feedstocks.

关键词： Fructose Lactic acid Alkyl lactate Thermal conversion

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Ultrathin NiFeS nanosheets as highly active electrocatalysts for oxygen evolution reaction

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Chinese Chemical Letters 2022年第8期33卷 3916-3920页

作者： Yanrong Xue mengyuan Liu Yangyuanxiang Qin Yufeng Zhang Xuejiang Zhang Jinjie fang Xu Zhang Wei Zhu Zhongbin Zhuang State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China Beijing Key Laboratory of Energy Environmental Catalysis Beijing University of Chemical TechnologyBeijing 100029China

The development of efficient and cost-effective oxygen evolution reaction(OER)electrocatalysts is crucial for clean energy conversion and storage devices,such as water-splitting,CO_(2) reduction,and metalair batteries.Herein,we report an efficient 2-dimensional OER catalyst of ultrathin nickel-iron sulfide nanosheets(Ni Fe S-NS).Dodecanethiol is employed in the synthesis,which prohibits the growth along the Z-axis,thus a nanosheet is obtained.The Ni Fe S-NS shows high OER catalytic activity,which only requires a small overpotential of 273 mV to achieve the OER current density of 10 mA/cm^(2) in alkaline electrolyte,and almost no decay after 150 h of chronopotentiometry test.The high performance is attributed to the 2-dimensional structure,the synergistic effect from the Ni and Fe components which promotes the formation of the high valence Ni species,and the tuning effect from the in-situ generated sulfate doping.This work demonstrates the advantages of the 2-dimensional sulfides in electrocatalysis.

关键词： Nanosheets Nickel Iron Sulfides Oxygen evolution

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血清ESM-1、HSP60水平与胃癌根治术患者预后的相关性

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黑龙江医学 2024年第9期48卷 1064-1066,1069页

作者：方孟园信阳市中心医院普外科河南信阳464000

目的:探讨血清内皮细胞特异性分子-1(ESM-1)、热休克蛋白60(HSP60)与胃癌根治术患者预后的关系。方法:选取2018年5月-2020年5月于信阳市中心医院确诊并行胃癌根治术治疗的136例胃癌患者作为研究对象。入院后次日,检测胃癌患者血清ESM-1... 详细信息

目的:探讨血清内皮细胞特异性分子-1(ESM-1)、热休克蛋白60(HSP60)与胃癌根治术患者预后的关系。方法:选取2018年5月-2020年5月于信阳市中心医院确诊并行胃癌根治术治疗的136例胃癌患者作为研究对象。入院后次日,检测胃癌患者血清ESM-1、HSP60水平;术后对患者进行跟踪随访,随访时间截至2022年5月,评估患者预后情况,分析血清ESM-1、HSP60与胃癌根治术患者预后的相关性。结果:最终纳入130例患者进行研究;随访期间,130例胃癌患者中预后不良30例;预后不良组血清ESM-1、HSP60水平高于预后良好组,肿瘤分期为Ⅲ期、淋巴结转移占比高于预后良好组,差异有统计学意义(t=6.235、14.695;χ^(2)=2.742、10.566,P<0.05);经点二列相关性分析显示,血清ESM-1、HSP60与胃癌根治术患者预后呈正相关(r=0.632、0.675,P<0.05);血清ESM-1、HSP60二者联合预测的价值最佳(AUC=0.794)。结论:血清ESM-1、HSP-60水平与胃癌根治术患者预后有关,且血清ESM-1、HSP-60可作为预测患者预后的重要指标。

关键词：胃癌根治术内皮细胞特异性分子-1 热休克蛋白60 预后

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